Excelsior-cutting machine.



No. 805,149. PATBNTED NOV. 21, 1905.

W. H. NIEMEYER.

EXCELSIOR CUTTING MACHINE.

APPLICATION FILED SEPT. 23, 1904.

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PATENTED Nov. 21, 1,905.

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PATENTED NOV. 2l, 1905. W. H. NIEMEYER.

EXCELSIOR CUTTING MACHINE. APPLIoATloN FILED SEPT. 2a, 1904.

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Gwltnaooao Ma/wv, l a@ @tbox mm3 No. 805,149. PATENIED NOV. 21, 1905. W. H. NIEMEYER.

EXCELSIOR CUTTING MACHINE.

APPLICATION FILED SEPT. 23. 1904.

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ITD STATES PATENT OFFICE.

Specification of Letters latent.

Patented Nov. 21, 1905.

Application filed September 23, 1904:. Serial No. 225,704

T0 all whom, it muy concern:

Beit known that I, WILLIAM H. N IEMEYER, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful'lmprovements in Excelsior-Cutting Machines, of which the following is a specification-- This invention relates to machines for cutting excelsior; and the object is to provide a simple and effective machine of large capacity.

The invention consists in the novel features of construction hereinafter fully described, particularly pointed out in the claims, and clearly illustrated by the accompanying drawings, in which-- Figure l is a top plan view of a machine constructed in accordance with my invention; Fig. 2, a side elevation of the same; Fig. 3, an enlarged view showing the carrier for the scorers and support therefor in side elevation. Fig. 4; is a fragmentary sectional view showing one of the scorers in position in the opening of the disk; Fig. 5, a side elevation of a modified construction of scorer-carrier, the carrier-disk forthe cutter being shown in section; and Fig. 6, a top plan view, partly in section, of the carriers with the scorers and cutters carried thereby.

The present invention is directed to a modiiied construction of the carrier for the scorers shown, described, and claimed, broadly, in my application for patent, tiled September 6, 1904, Serial No. 223,513. v

Referring now more particularly to the drawings, 1 designates the base of the machine, and 2 2 alined stands or bearing-supports provided'with suitable bearings for alongitudinally extending power shaft 3. Upon the inner end of this shaft is a disk 4, which constitutes a carrier for the cutters 5, of which there may be any desired number. These cutters are adjustably secured in suitable openings formed in the disk and have their cutting edges projecting upon the front face thereof. Formed in the disk in advance of the cutters are openings 6 of suitable size and shape to receive the scorers which enter the same and project to the front face of the disk to score the block of wood, as will be fully set forth hereinafter.

Disposed on each side of the vertical center of the disk is a pair of supports 7, carrying horiZontally-alined bearings for a shaft 8, upon which a hub 9 is mounted or formed integral therewith. Each hub 9 is provided with a number of radially-extending arms lO,

preferably three, although the number may be varied without departing from my invention. Each arm consists of a section a, fast to or integral with the hub, and a sliding section telescoping therewith. Section t is formed hollow to receive section and carries antifriction rollers c, contacting with the section whereby the movement of the latter in the former is smooth and easy. Section is normally pressed outward by coiled springs Z within section a, and its movement is limited by the engagement of a stud or pin c carried thereby, with the end walls of slots f formed in section ct.

Section is formed at its outer end with a socket or head g, in which a plurality of scoring-teeth /t are removably secured, and projecting laterally from opposite sides of said head are arms c', carrying rollers j.

Each of the shafts 8 is provided on its inner end with a bevel-gear ll, meshing with a similar gear l2 on the power-shaft 3 and by means of which motion is imparted to the two scorer-carriers.

The operation of my invention as thus far described is as follows: The movements of the disk and scorer-carrier are so timed that one of the scorers will swing in each of the openings 6 of the disk when the latter reaches the proper positions to permit such movement.

The scorers will remain in said openings of the disk until they have traversed the face of the block of wood, when they will be swung therefrom by their carrier. The rollers y'contact with the rear face of the disk during the time the scorers are in operative position and press sections ct of the arms 10 into sectionsb thereof against the tension of springs d, thereby causing the scorers to move ,in substan-4 tially a straight line across the face of the block of wood, whereby a cut of approximately uniform depth is secured. As soon as the scorersd isengage the disk said springs restore sections a to normal position. lt will be seen that I have provided a scoring mechanism at each side of the machine, the movement of the mechanisms being in reverse directions. More than two of these mechanisms might be employed, if desired, so as to increase the capacity of the machine. The scorer having acted upon the block of wood, the cutters following it slice shavings therefrom, said cutters being set to project one slightly beyond the other so as to cut several shavings, their combined cut not exceeding the cut of the scorers.

In the modified construction illustrated in IOS IIO

Figs. 5 and 6 I have provided carriers for the scorers, each consisting 'of a hub 13, having radially-extending arms comprising tubular sections 14: and sliding sections 15 telescoping therewith. Each section 15 is formed with a socket or head 16, in which the scoring-teeth 17 are detachably secured. Projecting laterally from opposite sides of each head are suitable studs, upon which rollers 18 are mounted, said rollers moving in cam-tracks 19, suitably supported and of which there are two for each carrier. The carriers are driven by a bevelgear 2() on the power -shaft, which meshes with similar gears 21, carried by the shafts of hubs 18.

In operation the scorers are swung into and out of the openings 6 of the disk by the camtracks in which the rollers 18 move, as will be readily understood, and are given a straightline movement by the straight portions X of said tracks. Sections 15 of the carrier-arms having a sliding` connection with sections 14 thereof,they readily accommodate their movement to the contour of the cam-tracks.

In connection with both of the constructions above described I employ, by preference, the feed mechanism shown, described, and claimed in my aforesaid application for patent, which, briefly stated, consists of two sliding feed boxes or ways 21 22, mounted upon suitable tracks or supports 23, said boxes being arranged one in advance of the other and open at their ends and top. Each box 21 is provided at its sides with carrier chains or belts 24E, carrying pushers 25 and driven by the powershaft through suitable intermediate gearing. These pushers swing into and out of the boxes and travel therethrough in pairs, the pushers of each pair engaging opposite sides of the block or series of blocks to be fed forward. Each box 22 has at its inner end a pair of feed-rolls 26, disposed at the top and bottom thereof, to receive the block from the pushers and feed it to the scorers and cutters. These rolls are driven from the power-shaft through the medium of suitable gearing.

The boxes are mounted to slide in tracks 23, so that upon undue pressure upon the block they may yield rearwardly. This rearward movement is against the action of suitable means consisting, preferably, of a bell-crank lever 27, pivoted adjacent to each box and having its short arm connected therewith by a link 28 and its long arm provided with a weight 29 adjustable thereon.

The boxes yield rearwardly independently of each other; .but when box 22 has moved a certain distance it will contact with box 21, and should there be any further pressure both/ boxes will move rearwardly against the combined action of weights 29.

I do not desire to limit myself to the exact details of construction shown and described in the present case, as many changes and modi- [ications might be made without departing from the spirit and scope of my invention.

Having thus fully described my invention, whatI claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a machine for cutting excelsior, a scorer and a cutter, two rotary carriers, Acarrying one the cutter and the other the scorer and arranged to cause said cutter and scorer to move in the same straight line during a portion of their movement, and means for feeding' a block of wood to posi-tion to be acted upon by said scorer and cutter.

2. In a machine for cutting ex'celsior, acutter and a scorer, two rotary carriers having their axes at right angles and carrying one the scorer and the other the cutter and arranged to cause the cutter and scorer to move in the same straight line during a portion of their movement, and means for feedingablock of wood to position to be acted upon by said scorer and cutter.

3. In a machine for cutting excelsior, arotary carrier, a cutter carried thereby, a scorer, a rotary carrier therefor arranged to swing said scorer into and out of the pla-ne of the cutter, means for causing said scorer to travel in substantially a straight line while in the plane of the cutter, and means for feeding a block of wood to position to be acted upon by said cutter and scorer.

4. In a machine for cutting excelsior, two independ ently-mounted rotary carriers, la cutter carried by one of said carriers, a scorer carried by the other of said carriers and movable thereon to and from the axis of rotation thereof, said carrier being arranged to swing said scorer into and out of the plane of the cutter, means for effecting the movement of the scorer on its carrier to cause it to maintain a straight line while in the plane of the cutter, and means for feeding a block of wood to position to be acted upon by the cutter and scorer.

5. In a machine for cutting excelsior, two independently-mounted rotary carriers, a cutter carried by one of said carriers, an automatically-adjustable scorer carried by the other of said carriers, adapted to adjust itself to maintain a substantially straight-line movement during its travel in the plane of the-cutter, said rotary carrier being positioned solas to swing said scorer into 'and'out'of the plane of the cutter, and means for feeding a block of wood to position to be acted upon by the cutter and scorer.

6. In a machine for cutting excelsior, a rotary carrier, a cutter carried thereby, a rotary carrier mounted independently of the first-mentioned carrier, and arranged in such a position as to swing the scorer carriedvthereby into and out of the plane of the cutter, Ia scorer movable upon the rotary carrierto and from the axis of rotation of the latter, means IOO IIO

carried by the scorer coacting with a part independent thereof for causing said scorer to maintain substantially a straight-line movement during its travel in the plane of the cutter, and means for feeding a block of wood to position to be acted upon by the cutter and scorer.

7 In a machine for cutting eXcelsior, a rotary carrier, a cutter carried thereby, a rotary carrier mounted independently of the first-mentioned carrier, and so positioned as to swing' the scorer carried thereby into and out of the plane of the cutter, a scorer movable upon said rotary carrier, to and from the aXis of rotation thereof, means carried by the scorer coacting with the cutter-carrier for causing said scorer to maintain a substantially straight-line movement during its travel in the plane of the cutter, and means for feeding a block of wood to position to be acted upon by said scorer and cutter.

8. In a machine for cutting excelsior, arotary carrier, a cutter carried thereby, a rotary carrier mounted independently of the {irstmentioned carrier, and so positioned as to swing the scorer carried thereby into and out of the plane of the cutter, a scorer movable upon said rotary carrier to and from theaXs of rotation thereof, rollers carried by said scorer, adapted to engage a part independent of the scorer and its carrier for causing said scorer to travel in substantially a straight line during its movement in the plane of the cutter, and means for feeding a block of..wood to position t0 be acted upon by the cutter and scorer.

9. In a machine for cutting excelsior, a rotary carrier, a cutter carried thereby, a rotary carrier mounted independently of the firstmentioned carrier, and so positioned as to swing the scorer carried thereby into and out of the plane of the cutter, a scorer movable upon said rotary carrier to and from the axis of rotation thereof, rollers carried by said scorer, adapted to engage the cutter-carrier for causing said scorer to travel in substantially a straight line during its movement in the plane of the cutter, and means for feeding a block of wood to position to be acted uponl by the cutter and scorer.

10. In a machine for cutting excelsior, a rotary disk having an opening formed therein, a cutter having its cutting edge projecting upon the front face of said disk, adjacent to said opening in the disk, a rotary carrier so positioned as to swing the scorer carried thereby into and out of the plane of the cutter a scorer movable upon said carrier to and from its axis of rotation, means carried by said scorer adapted to engage the rotary disk and cause said scorer to maintain substantially a straight-line movement during its travel in the plane of the cutter, and means for feeding a block of wood to position to be acted upon by said cutter and scorer.

ll. In a machine for cutting excelsior, arotary disk having an opening' formed therein, a cutter having its cutting edge projecting from the front face of said disk, adjacent to said opening in the disk, a rotary carrier so positioned as to swing the scorer carried thereby into and out of the plane of the cutter a scorer movable upon said carrier to and from its axis of rotation, rollers carried by said scorer adapted to engage the rotary disk and cause said scorer to maintain substantially a straight-line movement during its travel in the plane of the cutter and means for feeding a block of wood to position to be acted upon by said cutter and scorer.

l2. In a machine for cutting excelsior, a carrier, a cutter carried thereby, a rotary carrier having a telescopic arm, a scorer carried by the movable section of said arm, said rotary carrier arranged to swing said scorer into and out of the plane of the cutter, means carried by the scorer for effecting the movement of said telescopic arm to cause the scorer to travel in substantially a straight line during its move- I ment in the plane of the cutter, and means for feeding a block of wood to position to be acted upon by said cutter and scorer.

13. In a machine for cutting excelsior, a rotary disk having an opening formed therein, a cutter having a cutting edge projecting lfrom one side of said disk, a rotary carrier arranged at the opposite side of the disk, arranged to swing the scorer carried thereby into and out of said opening of the disk, a scorer carried by said rotary carrier, and means for feedingablock of wood to position to be acted upon by the cutter and scorer.

In testimony whereof I afiiX my signature in presence of two witnesses.

WILLIAM H. NIEMEYER.

Witnesses:

Trios. KELL BRADFORD, AUG. WV. BRADFORD.

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